Copper(II) Triflate Promoted
One-Pot Synthesis of Coumarin-, Quinolone-, and Naphthalene-Annulated
2-Aminothiazoles under Ligand-Free Conditions

K. C. Majumdar; Nirupam De; Debankan Ghosh; Sudipta Ponra; B. Roy

doi:10.1055/s-0031-1289608

PAPER

Copper(II) Triflate Promoted One-Pot Synthesis of Coumarin-, Quinolone-, and Naphthalene-Annulated 2-Aminothiazoles under Ligand-Free Conditions

K. C. Majumdar*^a,b, Nirupam De^a, Debankan Ghosh^a, Sudipta Ponra^a, B. Roy^a
^a Department of Chemistry, University of Kalyani, Kalyani 741235, W.B., India
^b Department of Chemical Sciences, Tezpur University, Napaam 784028, Assam, India
e-Mail: kcm_ku@yahoo.co.in;

Abstract

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Abstract

An efficient synthesis of new 2-aminothiazole-annulated compounds is described via copper(II) triflate promoted sequential condensation, arylation, and heterocyclization reactions in one step. The reaction is compatible with a variety of substrates providing efficient access to many biologically important skeletons in good yields.

Key words

copper triflate - multicomponent reaction - naphthothiazole - domino synthesis - carbon disulfide

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References

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